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[Irritable bowel syndrome--criteria, sub-classification, etiology]
1Gunma University, 1st Department of Internal Medicine.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|November 1, 1992
Summary
Irritable bowel syndrome (IBS) is a common gastrointestinal disorder characterized by gut dysmotility. Emerging evidence suggests IBS may involve smooth muscle dysfunction beyond the intestine, impacting overall health.
Area of Science:
- Gastroenterology
- Functional Gastrointestinal Disorders
- Gut-Brain Axis
Context:
- Irritable bowel syndrome (IBS) is a prevalent yet poorly understood condition encountered in gastroenterology.
- The Rome criteria (1988) define IBS as a functional intestinal disorder with chronic gastrointestinal symptoms, excluding painless presentations.
- IBS is sub-classified based on prominent symptoms like abdominal pain with diarrhea or constipation.
Purpose:
- To review the current understanding of Irritable Bowel Syndrome (IBS) pathophysiology.
- To explore the role of gut dysmotility and its triggers in IBS.
- To discuss the expanding view of IBS as a generalized smooth muscle disorder.
Summary:
- IBS is characterized by chronic or recurrent gastrointestinal symptoms without identifiable structural or biochemical abnormalities.
- Gut dysmotility, influenced by various stimuli including psychological stress, is a key feature implicated in IBS.
- Current evidence suggests IBS may represent a more generalized disorder of smooth muscle function extending beyond the intestinal tract.
Impact:
- Enhances understanding of IBS pathophysiology beyond a purely intestinal focus.
- Highlights the potential for novel therapeutic targets addressing smooth muscle dysfunction.
- Improves diagnostic and management strategies for IBS patients by considering a broader physiological scope.